Wire-barbing machine.



' W. -H. FARRELL.

WIRE BARBING MACIHNE.

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No 704,872. Patented July l5,l 902.

Y W. H. FARBELL. Y v f WIRE BARBING MACHlNE.

, (Application flied Dec. 12, 1901A (No Model.) 2 Sheets-Sheet 2.

WITNESSES Y INVENTOR UNITED STATES PATENT FFICE.

VILLIAM H. FARRELL, OF DONORA, PENNSYLVANIA.

WIRE-BARBING MACHINE.

sPncIFIcATIoN rs1-ming pas of Letters Patent No. 704,872', dated .Iuiy 15, 1902.

Application iiled December l2, 1901. Serial No. 85,565. V(No model.)

To all whom, it may concern.- L

Be it known that I, WILLIAM H. FARRLL, of Donora,Washington county, State of Pennsylvania, have invented a new and useful Improvementin Pull-O ut Devices for Wire-Barbing Machines and the Means for Actuating the Same, of which the following is a specification, reference being had to the accompany ing drawings, in whicht Y Figure 1 is a top plan view of aWire-barbing machine provided with myimproved pullout device. Fig. 2 is a side elevation of the pull-out end of the machine and the twister used in connectiontherewith. Fig. 3 isaside elevation of the pull-outwheel. Fig. 3 is a detail view of the grasping-hogere.

This invention consists of certain improvements in wire-barbing machines,in which a yielding butterfly-wheel is placed adjacent to the pull-out wheel, and it is intended to provide for taking up the slack of the wire as it is being wound upon the spool.

It further consists 'in details of construction and combination of parts more fully hereinafter described, and pointed out in the claims.

In the drawings, 2 represents a wire-barbing machine of well-known construction provided with the usual spindle 3, through which the strand-wires are fed.

4 4 are the guides for the barb-wires'.

5 5 are the cutting-knives, by which the barbs are severed as they are fed to the machine. t

The barbs are placed on the strand-wires in the usual way, which does not need detailed description.

The pull-out wheel is provided with radial arms 7, having a rigid finger 8 and a coacting pivoted finger 9, arranged to clamp the barbed wire as it pulls itthrough the spindle 3. The pivoted finger 9 is released from the barbed wire by gravity as the wheel 6 is rotated. This wheel is mounted upon a shaft 10, secured in suitable bearings upon the bedframe of the machine 2, and is provided at its outer end with a pinion 11, which is adapted to engage aY pinion 12, mounted upon a studshaft 13, the pinion 12 being secured to a toothed wheel 14, driven by a cam-wheel 15, mounted upon a shaft 16, theshaft being rotated by the gear connections 17 upon the of the wheel 14E rotate the toothed wheel one tooth for each revolution of the cam 15. In all positions of the cam there is a positive engagement between the cam and the wheel. The pinions 11 and 12 may be proportioned to each other in such manner that the distance between the barbs will be made greater or less in accordance with the speed at which the pull-outwheel is driven through this connection. suitable bearings 19 and consists of a frame 20, upon which is mounted a spool 21 and a traveling butterdy-wheel 22. Between the twister 18 and the pull-out wheel t' is located a butterfly-Wheel 23, mounted upon a pivoted arm 24, to which is secured a spring 25 insuch a manner that a constant tension is maintained upon the barbed wire as it passes from the grip of the pull-out wheel to the twister.

The advantages of my invention will be appreciated by those skilled in the art, since by providing the pull-out mechanism with a camactuated connection I am enabledy to greatly simplify the machine and at the same time accomplish all that has been heretofore accomplished by more complicated arrangements. The further advantage of this construction is that it enables me to change the spacing of the barbs upon the strand-wire with much greater ease and consequent saving of time, because of the fact that the gearing by which this spacing is accomplished is readily accessible without the dismantling of any portion of the pull-out mechanism save the gears by which the pull-out is driven.

Thetwister 18, Fig. 2, is mounted in By providing the pull-out wheel with rigid ngers acting with a pivoted finger I largely prevent variation in slack from affecting the proper' feeding of the barbs to the strandwire, as the newly-formed barbed wire is clamped between the pivoted finger and the rigid finger as the strand-wires are drawn IOO through the spindle, and are automatically released by gravity as the wheel rotates. The yielding buttery-wheel placed between the pull-out wheel and the twister provides the necessary tension upon the barbed wire to insure its being Wound properly upon the spool of the twister. The pull-out wheel is given an intermittent motion in a very simple and effective manner by employing a cam a portion of which rotates a rotating member and another portion of which holds the same against rotation, and this construction renders the operation of the pull-out device simple and eiective and positive in its action.

Havingthus described my invention, what I claim, and desire to secure by Letters Patent, is

` 1. In a wire-barbing machine, a pull-out wheel having grippers formed of two or more members, one of which at least is movable, the movable member or members being actuated to grip the wire by the pressure of the wire thereon caused by the tension on the wire.

2. In a wire-barbing machine, a pull-out device having gri-ppers formed of two or more members, one of which at least is movable, the movable member or members being composed of a bell-crank lever or levers, one arm of such lever being adapted to have the wire rest thereon.

3. In a wire-barbing machine, a pull-out wheel having grippers formed of two or more members, one of which at least is movable, the movable member or members being actuated to grip the wire by the pressure of the wire thereon caused by the tension on the wire, a twister, and a yielding butterywheel between the pull-out wheel and the twister. i

In testimony whereof I have hereunto set my hand.

WILLIAM H. FARRELL.

Witnesses:

I. L. HUGHES, JOHN D. MILLER. 

